ASTROSAT CZTI

Data Quality Report

Orbit 43225

Creation date: 2024-06-27T22:49:30.395922
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A06_006T01_9000005860_43225cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43225cztM0_level2_quad_clean.evt
Size (bytes)345,136,32091,699,200
Size329.1 MB 87.5 MB
Events in quadrant A3,577,333600,709
Events in quadrant B2,431,753639,409
Events in quadrant C2,856,603601,793
Events in quadrant D3,474,730543,674

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141103
B0113452
C0119782
D0142742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55891512.701736%
B558990.161031%
C5589691.234568%
D55891612.880658%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7413 5590 145 145 1.96% 2.59%
B 7413 5590 7 7 0.09% 0.13%
C 7413 5590 67 67 0.90% 1.20%
D 7413 5590 135 135 1.82% 2.42%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 584671 4732.72 595 583 123.4
A 15 237 445649 3606.26 595 583 123.4
A 13 248 122584 988.54 595 583 123.4
B 5 255 33400 278.98 601 584 117.6
B 5 172 29560 246.33 601 584 117.6
B 12 111 14522 118.49 601 584 117.6
C 14 254 291927 2094.33 594 597 139.1
C 15 214 232724 1668.73 594 597 139.1
C 3 233 6928 45.51 594 597 139.1
D 1 52 396809 2774.77 585 568 142.8
D 13 249 362621 2535.36 585 568 142.8
D 12 16 200517 1400.19 585 568 142.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter